Titan IMPACT 740 Notice D'utilisation page 13

Repacking the Fluid Section
1. Remove the foot valve assembly
and the lower housing using
the steps in the "Servicing the
Valves" procedure above.
NOTE: The outlet valve
does not need to be
disassembled from
the piston rod for this
procedure.
2. Tap the knock-off nut with a
soft hammer so that it turns
counterclockwise and loosens.
3. Turn the fluid section
counterclockwise to remove it
from the gear box housing.
4. Place the upper housing upright
in a vise by clamping on the
wrench flats.
NOTE: Do not over-tighten the
vise. Damage to the
upper housing may
occur.
5. Using a wrench, remove the
upper seal retainer.
6. Slide the piston rod forward until
the piston is out of the T-slot on
the slider assembly.
7. Pull the piston out through the
bottom of the upper housing.
8. Inspect the piston rod for wear
and replace if necessary.
9. Remove the upper and lower
packings from the upper
housing.
NOTE: Be careful not to scratch, score, or otherwise
damage the upper housing during removal of
the packings.
10. Clean the upper housing. Inspect the upper housing for
damage and replace if necessary.
11. Locate the new upper and lower packings and pack the
areas between the packing lips with grease. Lubricate the
o-rings on the exterior of the packings with grease.
12. Insert the upper packing into the
top of the upper housing with the
raised lip on the packing facing
down.
13. Insert the spacer on top of the
upper packing.
14. Thread the upper seal retainer
into the upper housing and torque
to 25-30 ft. lbs.
15. Pre-form the lower packing using the lower packing sizing
tool (included in the repacking kit).
16. Insert the lower packing partially
into the bottom of the upper
housing so that the side that has
the o-ring closest to the face of
the packing faces up.
17. Push the lower packing into
position using the lower packing
insertion tool (see Fluid Section
Assembly parts list for lower
packing insertion tool P/N).
© Titan Tool Inc. All rights reserved.
Crankshaft
Slider
Assembly
Knock-Off
Nut
Upper Seal
Retainer
Spacer
Upper
Packing
Upper
Housing
Lower
Packing
Wear Ring
Piston Rod
Install upper packing
with raised lip
facing down.
Raised Lip
Install lower packing with
the side that has the o-ring
closest to the face of the
packing facing up.
Closer
Top
13
18. Place the piston insertion tool (included in the repacking
kit) over the top of the piston rod.
19. Insert the piston rod into the bottom of the upper housing,
through the lower packing, through the upper packing, and
out through the upper seal retainer.
NOTE: When repacking the fluid section, make sure the
raised lip on the bottom of the lower packing is
fully outside the packing around the piston rod
after insertion of the piston rod.
20. Remove the piston insertion tool from the top of the piston
rod.
21. Slide the top of the piston rod into the T-slot on the slider
assembly.
22. Turn the knock-off nut counterclockwise until it is flush
against the upper housing.
23. Lubricate the threads on the upper housing with anti-seize
compound. Remove the upper housing from the vise.
24. Thread the upper housing into the gear box housing,
turning clockwise.
25. Continue to turn the upper housing clockwise until the
knock-off nut is flush against the gear box housing.
NOTE: If the nipple on the upper housing does not face
the back of the unit, turn the upper housing
counterclockwise until the nipple faces the back
of the unit. Do not turn the upper housing more
than one full turn.
26. Once the nipple is positioned, turn the knock-off nut
clockwise until it contacts the gear box housing.
27. Tap the knock-off nut with a soft hammer to tighten it
against the gear box housing.
28. Making sure that the Viton o-ring and Teflon back-up ring
are lubricated and in place, thread the lower housing into
the upper housing. Using two wrenches, hold the upper
housing at the wrench flats with one wrench and tighten
the lower housing with the other.
29. Attach the high-pressure hose to the nipple on the back
of the housing and tighten with a wrench. Do not kink the
hose.
NOTE: For low rider units, make sure the hose does not
touch the cart frame. If it does, reposition the
nipple by turning the upper housing until the
hose is clear of the frame and the nipple is within
45º of the back of the unit.
30. Making sure that the Viton o-ring and Teflon back-up
ring are lubricated and in place, reassemble the foot
valve assembly and and thread it into the lower housing.
Tighten securely.
31. Thread the siphon tube/siphon set into the foot valve and
tighten securely. Make sure to wrap the threads on the
down tube/siphon tube adapter with Teflon tape before
assembly.
32. Replace the return hose into the clamp on the siphon tube.
33. Place the front cover on the gearbox housing and secure
in position using the four front cover screws.
34. Turn on the sprayer by following the procedure in the
"Operation" section of this manual and check for leaks.
NOTE: Repacking kit P/N 805-1010 is available. For best
results use all parts supplied in this kit.
English